I picked up one with a LS1 but it's not ready to fly, I picked the plane because it wasn't a typical aircraft motor, what will have to be proven beneficial or detrimental.. a few months should have the answer on that.

There are a few LS1 engines flying. The early wheelers had 2 crashes due to this type of engine- not the engine per se, but the in flight fires were caused by the engine. In both cases an oil line leaked oil onto the headers and caused a fire. Both times it was a rubber hose that ruptured.

If you dont listen to anything else that I tell you listen to this: Run hard pipe everywhere possible especially oil and fuel lines. Cover all the lines,even SS braided, with the orange fire flex cover. In the event of a leak the fluid is contained and can be directed outside of the cowling.Pay close attention to the routing of all fluid lines, keep them away from everything and tie them down. Always think about the fluid and where it will go.

I am an A&P and work on lots of certified planes. The biggest difference in construction is that experimental builders want to rubber hose everything, certified planes have very little flex hose. Most Continental oil coolers are bolted straight to the block, no hoses at all.

My second Wheeler is powered by a 300 HP Mozda rotary engine 13b with P ports and a turbo. And almost no rubber hoses. Short sections where needed, none where not needed.